Lukas Eder created JCR-3561:
-------------------------------
Summary: Add JcrUtils.collect(Iterable) and collect(Iterator) to
conveniently collect Nodes / Properties into Lists
Key: JCR-3561
URL: https://issues.apache.org/jira/browse/JCR-3561
Project: Jackrabbit Content Repository
Issue Type: Improvement
Components: jackrabbit-jcr-commons
Affects Versions: 2.7
Reporter: Lukas Eder
Priority: Minor
Attachments: JcrUtils.java.patch
I repetitively find myself collecting nodes / properties into Lists as I want
to perform multiple operations on a list of nodes (e.g. calling size() upon
it). Instead of repeating this operation in client code, I'd like to add
JcrUtils.collect(...) for this. These would be some sample implementations:
/**
* Collect all elements from an {@link Iterable} into a {@link List}.
*
* @param iterable The <code>Iterable</code> to collect values from.
* @return The collection result.
*/
public static <T> List<T> collect(Iterable<T> iterable) {
List<T> result = new ArrayList<T>();
for (T value : iterable) {
result.add(value);
}
return result;
}
/**
* Collect all elements from an {@link Iterator} into a {@link List}.
*
* @param iterator The <code>Iterator</code> to collect values from.
* @return The collection result.
*/
public static <T> List<T> collect(Iterator<T> iterator) {
return collect(in(iterator));
}
I've also attached a patch containing the above. I'm sure that these methods
will also be useful to Jackrabbit core libraries.
Feel free to rename the method, e.g. to "list()" or "toList()" if you find that
more suitable.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
